Gianluca Dragone, Greens

"In a seat like Banks, where the Greens average not too high of a vote, our goal is always to be there as a principled, progressive voice — to be there as a voice that draws Labor further left, essentially."

The university student says he's just a regular person, and is hoping that will appeal to voters.

Reginald Wright, United Australia Party

Mr Wright says immigration needs to be at a level Australia can sustain.

"I believe we're probably pushing people out of areas where they'd like to live but they can't afford anymore, because they're simply being pushed out by immigration policies that bring in people who have got lots to spend and not really contributing to the economy as probably they should."

Mr Wright says while he doesn't think he'll win the seat, he says it's important to "keep the bastards honest".

"You have to do something to make a small difference, no matter how small that difference is."

Charles Jago, Greens

Councillor Jago is the Deputy Mayor of the City of Canada Bay Council.

"Being in council gets your finger on the pulse.

"I find it really helpful because I've had to learn an enormous amount about all of the local issues ... it gives you that broad background and understanding and you get to connect with different people.

He has lived in the electorate for 30 years and says it has seen substantial change.

"Only about 20 per cent of people in this electorate have both their parents born in Australia, like me."

Melissa McIntosh, Liberals

Ms McIntosh, a communications manager, says jobs and congestion are big issues in the area.

"People are talking to me about jobs, so that's what they're talking about when they're getting on the train in the morning and they're doing this commute for 15 hours a week — that's a long commute away from your family.

"There's a lot going on in western Sydney. It's a growing place.

"Easing the congestion on the roads is something that people want, whether you're a tradie going off to work in the morning, or if you're a family driving on the weekends."

Mark Tyndall, Independent

He says the biggest issues are cost of living, critical infrastructure around Penrith, and the waiting lists at Nepean Hospital.

Slowing population growth should be a priority, he says, defending his own contribution to the population bubble.

"A family of six kids is not necessarily something that is common around here. That said, we're not looking at decreasing population to look at how we're currently travelling, it's looking at future long-term development."

What do the people say?

High school teacher Sam says he is concerned about funding for education and the Nepean Hospital.

"[That's] because of the growth of the area and because of the number of times that I or the people in my family have used it, it's really important to us."

Kerryn Phelps, Independent

Before her victory last year, Dr Phelps thought it was unlikely she'd get elected.

"I was initially motivated to stand for the by-election when Malcolm Turnbull was deposed and then resigned from the parliament, and people were asking me if I would consider running as an independent.

"Ultimately, I decided that it was better to roll up my sleeves and try to be elected, even though it was a long shot, than to just stand on the sidelines and be agitated and upset about what was happening in the political arena."

She says a strong independent in the centre of politics can ideally work harmoniously with both sides of politics.